Improvement in variety moulding-machine



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JAMES HATCH, or SAN FRANCISCO. CALIFORNIA.

Letters Patent No. 92,609, dated July 13, 1869.

IMPROVEMENT IN VARIETY Monomer-amounts.

'The Schedule referred to in these Letters Patent and making part of the same.

To all whom it may concern:

Be it known that I, JAMES HATCH, of the city and county of San Francisco, and State of California, have invented certain new and useful improvements in what is commonly known as the Variety Moulding-Machine and I do hereby declare that the following is a full, clear, and exact description-thereof.

My invention consists of three things, to wit:

First, what I call the guard, designed to protect the hands of the operator from being injured by the variety moulding-machine, while the same is in operation; v I

Second, what I call the clamp, a device for holding and guiding the material while being-worked on said machine; and

Third, whatI call the guide, another device for guiding said material. a

In order to enable othersskilled in the art to make and use my invention, I will proceed to describe the construction and operation of the same with reference to the accompanying drawings, forming a part of this specification, in which similar letters of reference in the diiferent figures indicate the same parts, and in which Figure 1 A is a side view of the ,guard.

Figure 1 B is' a View of a vertical central section of the same.

Figure -2 A is a' top view of a curved guide.

Figure 2 B is a side view of the same.

Figure 3 A is a-top view of a straight guide.

Figure 3 B is a side view of the same.

Figure 4 A is a side view of the clamp.

Figure 4 B is an end View of the same.

Figure 4 O is a top yiew of the same.

Figure 5 isa perspective view of the whole, A showing the guard, B the clamp, and O the guides.

Figure 6 is a vertical central section view of the friction-pulley a: in place.

The guard is supported by the frame at, 'tached to the shop overhead.

The upper. end of the round rod 1) is fastened rig- -idly to the frame, at the point directly over the cuttershafte The upper part of this rod is connected with't'he lower part by the parasol-joint c, which is stiffened at will by the slide (1. 1

The lower part of this rod slides through the neck 0 of the socket f, p

The neck is adjustable vertically on the rod by the thumb-screws or hand-wheels g.

To each, outside of the socket, is attached, a flat metallic plate, 71, with its edge turned up outwardly, or thickened so as to form a projection or shoulder, 4:.

Outside of these plates, and sliding upon them, are the lplates j, connected with and carried by the nozzle Between a-shoulder, l, on the outside of the neck, and a shoulder, m, on the inside of the nozzle, is a rubber ferrule or ring.

The ferrule rests upon the shoulder l, and the nozzle, by its shoulder m, rests on the ferrule.

Between the projection i on the bottom of the inner plate, and the lower edge of the outer plate j, on each side of the socket, is dovetailed a horizontal slide, at. To these slides'is attached the sheet-copper-bonnet 0, made in the peculiar manner shown clearly by the drawings.

Just above' the upper end of the nozzle, audresting upon it, is the thumb-nut 1), running on a screw cut onthe neck 0. By turning this nut ,one way, the nozzle and outer plates are pressed downward, the lubber ferrule-contracted, and the slides n clasped and fastened firmly; and by turningit the other way, the

rubber will be relieved, and by its elasticity carry the outer plates upward and relieve the slides n of pressure, and allow them and the bonnetto be adjusted horizontally at will.

' To prevent the bonnet from dropping when the thumb-screws gare unscrewed, and to fitcilitate the.

and theunut u, there is fitted a sleeve, composedof the part c screwed to the part w, as shown by fig. (i. Within the flanges of this sleeve runs the grooved pulley x, with a rubber ring, 3 pressed into the groove.-

A small oil-hole,'z, is made through the flange of the'part Q).

The nut it sets the sleeve wagainst the collar s, which is itself thereby set against the cutter t, causing the sleeve '10 to move with the shaft, while the pulley :1: remains stationary, held by the pressure of the rubber ring against the inside of the socket which fits closely about it, as before set forth. I

By this means the upper end of the cutter-shaft is made to hold firmly and steadily the lower end of the ard.

The depth of the socket should be suflioient to receive nearly all that portion of the shaft which is above the table.

The operation of the guard is as follows:

When not in use, the guard can be swung up out of the way by the joint 0. To be used, it is let down to a vertical position, the joint 0 stiffened, and the socket pressed down over the rubber ring y, and adjusted by the thumb-screws g to the. proper height for the material to be worked, and finally the bonnet adjusted horizontally bythe thumb-nut p, as required'by the length ofthe cutters.

When the cutters are quite short, the bonnet may be removed, and the socket alone used as a guard.

The band of the bonnet being between the hands of the operator and thecutters, renders injuryfrom them almost impossible; and at the same time the concave inner surface of the band acts as a spout to carry the chips to the rear, where they are discharged. The

opening over the baud allows the operator to observe the progress of the work.

The clamp consists of two legs, an inner one, E, having a foot, G, and an outer one, 1), having a foot, F.

They are held together at the top by the screw-rod H, screwing through the inner leg, and its point arranged to turn in the other leg Below it is another screw-rod, I, screwing through the nut J, which slides up and down a slot, K, in the inner leg, while its point slides up and down in a corresponding groove in the other leg.

The foot F of the outer leg formsadovetailed slide in the shoe L, and is adjustable therein by the thumbscrew M.

To each side of this shoe is dovetailed a toe or we tension, N, intended to berenewed, changed, or cut and carved at pleasure, to snit'difierent kinds of work i to. be done.

The inner edges or heels of the feet and shoes are parallel, curved, and notched, as shown in fig. 4 O.

The operation of the clamp is asfollows:

The clamp is fastened, by means of the screw-rods, to the material to be worked, as shown in fig. 5, B.

It will frequently happen that a pattern is necessary" to housed, and that the curve of the pattern does not coincide with that of the heels. .In such cases, the heel of the shoe L is adjusted, by thumb-screw .M, to the pattern, (which is attached to the under side of the material to be worked, and lies on the table,) 'while the heel of the foot is adjusted to the material, after which the clamp is tightened, and both pattern and material are held firmly.

The toe N is intended to rest and slide against the cutter-shalt, and to be so formed as to serve as a guide and support to the material while the cutters ar starting into their work.

The clamp also serves as a convenient and safe handle to the material.

The guide consists of a flat strip fastened to the table'at one end by a shank-pin through the table, while the other end rests against the cutter-shaft, and s0 fitted to it asthat the outer edge of the guide will be in line' with the outside of the shaft, as clearly shown by the drawings.

The operation of the guide is as follows:

The material to be worked is pressed firmly against the outer edge of the guide, near the shank-pin, and moved along the face of the guide till it reaches and rests against the shaft.

The clamp is mainly designed to aid in cutting out"- side, and the guide in cutting inside curves.

A straight-edged guide is useful in many cases.

' Having thus described my invention, i

What I claim as new, and desire to secure by Letters Patent, is- I v v 1. Constructing the guards of variety mouldingmachines with the socket f and bonnet 0,-substantially in the manner and for the purpose set forth.

2. The clamp herein set forth, provided with the shoe 1, fig. 4, when all the parts are constructed, to

operate substantially in the manner and for the purposes set forth.

3. The guides A and B, constructed and arranged relative to the cutter, substantially as set forth.

JAMES HATCH.

Witnesses:

ALFRED Rrx, v J. F. GowDERY. 

